Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Part no. 7583225
BMW 1 3 Series E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Manual
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Wiring BMW X3 F25 Automatic Gearbox Module Engine Wiring Harness 7811176
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BMW X3 Series E83 LCI 2.0d N47 Engine ECU Kit DDE 8506356 + EWS4 + Key Manual
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BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME 7552176 CAS2 + Key Manual
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Ford Transit Connect MK2 1.5 TDCI 101HP Engine Unit ECU GV6112A650KA Manual
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Mercedes W166 W221 Auxiliary Additional Generator Battery A0049820008
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Mercedes Sprinter W907 Battery Cable Alternator Wiring Loom Harness A9075400186
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Mercedes-Benz E-Class W211 Sam Unit Module Fuse Box Rear A2115453401
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Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813622
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Engine Alternator BMW E60 E61 E65 E66 Diesel Alternator Generator 170A 7789981
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit 1K0035186R
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Audi TT 8J 2.0 TDI 170HP CFGB Engine ECU Unit Kit 03L906018DT Manual
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Audi A5 8T Battery Starter Alternator Harness Wiring Cable 8K0971228B
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BMW X3 Series E83 Diesel Battery Positive Lead Red Cable Plus Pole Wire 3414880
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Ford Transit Connect Body Control Module BCM Control Unit ECU 7T1T-14A073-BB
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BMW 1 3 E87 E90 PDC Ultrasonic Sensor Front Rear Jerezschwarz A73 8046453
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Ford Transit Custom 2.2 TDCi Diesel Starter Motor WaiGlobal 12V 33243N
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Piaggio X8 X9 Vespa Granturismo Immobilizer Module Control Unit CDI 58054R
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1699002000
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-AB
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Starter Motor BMW G20 G21 G30 G31 G32 GT G11 B57 3.0 Diesel Engine 8589891
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VW Polo MK5 1.2 TDI CFWA Alternator Wiring Starter Motor Harness 6R0971349AH
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BMW 3 E90 LCI ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9247476
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Mercedes W203 C220 CDI 646.963 150HP Engine ECU Kit A6461500091 + Key + Lock
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Manual
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Mercedes GLC X253 220d OM651.921 170HP Engine Unit ECU Kit A6519006401 Automatic
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BMW X5 Z4 E46 E53 E85 Drive Window Lifter Motor Left N/S Front 8362063
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BMW 7 E66 Rear Left Door N/S Wiring Harness Loom Module Carrier 6950384
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Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038202286
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Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700
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BMW F11 Control Unit Rear Tailgate Boot Lid Function Module ECU 7333939
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BMW Mini Cooper One R55 R56 R57 1 Aerial Roof Antenna Base Unit 3442133
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Audi A4 B8 2.0 TDI Alternator Generator 03G903016G
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BMW Z4 E85 Body Control Unit Module GM5STAR12 LOW 6963038
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Battery Cable VW Golf 8 Audi A3 8Y Starter Alternator Wiring Harness 5WA971230CM
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Mercedes W204 Front Fuse Board Box Relay Unit Case A2049060405
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£BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE 7805286 + CAS3 + Key Automatic
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BMW 1 3 X1 Series E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 6946528
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Mercedes W176 W246 200 CDI 651.930 136HP Engine Unit ECU A6519009702 Manual
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Engine Wiring Mercedes W176 W246 W242 M270 Loom Harness Cable A2701501433
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BMW X1 F48 Dashboard Monitor Display Central NAV Information Screen 6,5" 8803369
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Mini Cooper R50 W10 116HP Engine Control ECU Kit DME 7545789 + EWS + Key Manual
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VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK
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BMW 3 Series E90 E92 E93 M3 Battery Alternator Starter Cable Wiring 7838512
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BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802
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Seat Module Mercedes C238 Front Right Seat Control Unit A2139008409
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Alternator BMW F20 LCI Mini F30 F56 F60 Alternator Generator DENSO 150A
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Mini R57 R58 Front Left Door Module Wiring Loom Harness N/S 9157650
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Mercedes C117 W176 45 AMG 133.980 Engine Control Unit ECU A2709002100 Automatic
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Mercedes W205 W213 Engine Wiring Harness Cable Loom M274 Petrol A2741504703
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Porsche Macan 95B Antenna Amplifier Control Unit Module Holder Bracket 95B907515
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BMW 3 E46 Petrol M52 M54 Engine Ignition Wiring Loom Harness Cables 1440006
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BMW X3 Series E83 Rear Bumper Wiring Loom PDC Harness Towing Hitch Hook
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BMW 3 5 E39 E46 M52 M54 320i 325i 330i 520i Alternator Generator 90A Valeo
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM II 9197163
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Audi A4 B9 Rear Hatch Boot Lid Tailgate Opening Control Module Unit 3G0962243D
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Mercedes W213 C238 Petrol Alternator Generator A0009060205
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BMW F97 F98 G01 G02 G20 G30 Engine Starter Motor 8671505
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LED Module BMW G11 G12 G20 F90 Dashboard Illumination Control Unit 6999950
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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Exhaust Flap Control Mercedes C117 W176 W246 Actuator Drive Unit A0009061201
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Peugeot 207 CD Player Radio Stereo Audio Head Unit 96639628XT00
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BMW X5 E53 3.0d Diesel M57 Alternator 150V 7792092
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Audi Q2 GA Air Module Control Unit 5QF959655BQ
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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Mercedes C207 Cable Wiring Power Steering Rack Loom Harness A2045400010
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Alternator Generator Mini R56 Petrol Engine Motor Bosch 150A 7553009 DRA0214
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Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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Audi A4 B7 2.7 TDI BPP Diesel Engine Alternator Generator 059903023BX
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8699973 Dual Clutch
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BMW F80 M3 LCI Telematic Control module Comunication Unit ATM ECE 4G 6820726
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Mercedes ML W166 Head Unit Radio Player Sat Nav Tel SD Card Unit A1669009808
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ECU Unit Mini Cooper R55 R56 LCI R60 Petrol N16 122HP Engine DME 7620987
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Audi A3 RS3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376E
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BMW E60 E87 E90 LCI 120d 320d 520d N47 Engine ECU Kit DDE 7812500 + CAS3 + Key
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Central Gateway BMW F01 F06 F10 LCI Module ECU Control Unit 9372743
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800 Manual
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Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 6902659
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BMW 5 6 Series E60 E61 E63 Left N/S B-pillar Airbag Sensor 6940297
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Part no. 7587548-4
Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Part no. 7786861
BMW X5 E53 3.0d M57 Alternator Starter Cable Wiring Base B+ 7786861
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Mercedes W246 Front Bumper Parking Sensor PDC Wiring Harness A2465400703
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BMW F22 F23 Active Front Bumper Sensor Pedestrian Protection Unit 9196020
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Mini Cooper F54 F56 F60 JCW B48E 306HP Engine ECU Kit DME 5A4C367 BDC Key
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Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .